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Sr Backend Python Developer Jobs in California (NOW HIRING)

Python Backend Developer Job Location: San Jose, CA Job Type: Contract Job Overview: Pay Range: $60hr - $65hr * The Python Backend Developer will be responsible for building scalable backend systems ...

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The Python Backend Developer will be responsible for building scalable backend systems and high-performance APIs that power AI-driven platform experiences. * This role involves designing robust ...

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Python Developer

Sunnyvale, CA · On-site

$59 - $81.25/hr

Looking for a backend Python Developer, it's a regular application development skill needed. * This team is developing the services which interact over web sockets with the system. So they have the ...

Python Developer

San Francisco, CA · On-site

$59.25 - $81.50/hr

Client is seeking a Senior Software Engineer with deep backend expertise to join a Scrum-based ... This role is heavily backend-focused, with strong emphasis on Python and PySpark, while also ...

Python Developer

Sunnyvale, CA · On-site

$59 - $81.25/hr

Looking for a backend Python Developer, it's a regular application development skill needed. * This team is developing the services which interact over web sockets with the system. So they have the ...

Sr. Python Developer

Palo Alto, CA · On-site

$143.20K - $192.70K/yr

Title: Sr. Python Developer Location: Palo Alto CA Duration: Long Term Contract Required Skills ... back end processing and as a full web-stack application Vast understanding of Pip, Flask, NumPy ...

Sr. Python Developer

Palo Alto, CA · On-site

$143.20K - $192.70K/yr

... back end processing and as a full web-stack application • Vast understanding of Pip, Flask, NumPy, Anaconda, PyCharm, or similar tool stack and ability to coach junior developers on their usage • ...

Senior Python Developer

Palo Alto, CA · Hybrid

$142.80K - $192.20K/yr

We are looking for an experienced Python backend/application developer for our AI platform. As a Senior Python Developer, you will lead the design, development, and deployment of scalable ...

Senior Python Developer

Palo Alto, CA · On-site

$142.80K - $192.20K/yr

We are looking for an experienced Python backend/application developer for our AI platform. As a Senior Python Developer, you will lead the design, development, and deployment of scalable ...

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Sr Backend Python Developer information

What is the difference between Sr Backend Python Developer vs Backend Python Developer?

AspectSr Backend Python DeveloperBackend Python Developer
Required Experience5+ years, leadership skills1-3 years, technical skills
ResponsibilitiesDesigning architecture, mentoringImplementing features, coding
CertificationsOptional, often relevantOptional
Work EnvironmentTeam leadership, project planningDevelopment, coding tasks

The main difference between a Sr Backend Python Developer and a Backend Python Developer lies in experience, responsibilities, and leadership roles. Senior developers typically have more experience, oversee architecture, and mentor junior staff, while backend developers focus on coding and feature implementation. Both roles are essential in Python-based backend development within tech companies and share similar technical requirements.

What job categories do people searching Sr Backend Python Developer jobs in California look for? The top searched job categories for Sr Backend Python Developer jobs in California are:
What cities in California are hiring for Sr Backend Python Developer jobs? Cities in California with the most Sr Backend Python Developer job openings:
Backend Python Engineer for API Services

Backend Python Engineer for API Services

OSI Engineering, Inc.

Cupertino, CA • On-site, Remote

$50 - $60/hr

Other

Posted 6 days ago


Job description

Backend Python Engineer for API Services
We are seeking a Backend Developer with a strong Data Engineering focus to build secure APIs, backend services, and enterprise data access solutions in a fast-paced, collaborative environment. This role focuses on developing Python-based backend systems and enabling scalable access to internal enterprise data platforms.
You will design and maintain backend services, REST APIs, and secure enterprise integrations within a cloud-based data environment. Initial priorities include building secure REST APIs and MCP integrations that expose internal enterprise data systems for broader platform use. Over time, the role may expand into ETL workflows, orchestration pipelines, data transformations, and cloud data platform initiatives using tools such as Airflow, DBT, and Snowflake. You will collaborate closely with engineering teams to build scalable backend systems, support data access initiatives, and contribute to evolving AI-enabled engineering workflows.
Minimum Qualifications

  • 8+ years of backend software engineering experience
  • Strong Python development experience
  • Experience building REST APIs and backend services
  • Experience with FastAPI or similar backend frameworks
  • Strong understanding of backend architecture and scalable system design
  • Experience working with secure enterprise systems and data access
  • Strong problem-solving and analytical skills
  • Ability to work independently within a small, fast-moving engineering team
  • Comfortable learning new technologies and adapting to evolving requirements


Preferred Qualifications

  • Experience with GraphQL, Airflow, DBT, or Snowflake
  • Experience with ETL and data transformation workflows
  • Exposure to AI/LLM engineering initiatives or MCP integrations
  • Familiarity with AI-assisted development workflows
  • Experience working in fast-paced or startup environments


Education & Experience

  • Senior-level backend engineering experience strongly preferred


Submit resume to 
Tony Do
x115
Type: Contract

Location: Cupertino, CA (Hybrid/Remote)
Duration: 12 Months +
Pay Rate Range: $50-$60/HR DOE